Fbanklin foell



( Mdl.

E() e P. FOELL! SEWING MAGHINE.

No.262,756. Patented Aug. 15, 1882 un y UNITED lSTATES PATENT OFFICE.

FRANKLIN FOELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE AMERICAN BUTTONHOLE, OVERSEAMING AND SEWING MACHINE COM- PANY, OF SAME PLACE.

SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 262,756, dated August 15, 1882.

Application filed April 11, 1882. (No model.)

To all whom t may concern:

Be. it known that I, FRANKLIN FORLI., a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented an Improvement in Sewing-Machines, of which the following is a specification.

My invention relates to an improvement in that class of sewing-machines in which two horizontal levers are pivoted to the under side 1o of the base-plate, one lever for operating the shuttle and the other for actuating the feeddog, the Patent No. 246,753, granted to the assignees of G. S. Rominger, April 18, 1882, at'- fording an example of shuttle and feed levers I5 of this class.

Myimprovementeonsists in combining these levers with a single pin which serves as an ordinary pivot for the shuttle-lever and as part of a universal or girnbal joint for the feedzo lever, substantially in the manner described hereinafter, the object of my improvement being simplicity and economy in construction.

In the accompanying drawings, Figure 1 shows part of the base-plate of a sewing-machine with the shuttle and feed levers hung to one pin; Fig; 2, a plan view of part of the feed-lever; Figs. 3 and 4, views representing modifications of my invention; and Fig. 5, a sectional view, illustrating a modification of 3o Fig. l.

In Figscl and 2, A represents in section part of the base-plate ot' a sewing-machine, and `B is a vertical pin secured to the under side of the plate. The shuttle-lever D is pivoted directly to this pin, so that the said lever may be vibrated in a horizontal plane; but the lower portion of the pin is adapted to and forms the pivot for a sleeve, G, the latter having a projection, a, to which the feed-lever H 4o is pivoted by a pin, b, the latter being situated at right angles to the pin B, and passing through the said projection a of the sleeve and through the feed-lever, which is slotted to receive the sleeve and its projection, as

shown in Fig. 2. It will thus be seen that while the pin B serves as a pivot for the shuttle-lever it forms, with the sleeve G and transverse pivot-pin b, a gimbal or universal joint, which permits the feed-lever to be vibrated 5o both vertically and laterally to meet the reqliliirements of the feed-dog of the sewing-mae me.

It has not been deemed necessary to illustrate or describe the mechanism for actuating the levers, as different operating devices may be employed for this purpose. The mechanism showu in the aforesaid patent may, for instance, he used as a medium for operating the feed-lever from the driving-shaft of the machine.

Instead of a pin, b, passing through a projection, a, on the sleeve G, the feed-lever may be pivoted to the sleeve through the medium of set-screws m in, the points ot' which enter recesses in the said sleeve, as shown in Fig. 3; or sections of spheres n n may be formed on the feed-lever, one on the upper and the other on the lower side of the same, the upper section of the sphere being adapted to a corresponding socket in the hub oi' the shuttlc-lever or in a collar on the pin B, and the lower section ot' the sphere heilig adapted to a socket formed in a washenp, which is confined by the head of the pin B, the wholeforming the well-known ball-and-socketjoint, which is the equivalent ot' the universal or gimbal joint described above, the object in the diierent modifications being to utilize the pivotpin B, demanded by the shuttle-lever, by converting it into part of a universal joint for the feed-lever.

It will be understood that in the modification, Fig. 4, the feed-lever H is quite loose on the pin, the lateral position of the lever being determined solely bythe ball-and-socket joint.

Should it be desirable for the shuttle-lever D, Fig. 1, to have a more extended bearing on the pin B, a tubular projection, w, Fig. 5, may be east on the said lever, and the sleeve G may be pivoted tothe said tubular projection.

I claim as my invention- The combination of the shuttle-lever and feed-lever of a sewing-machine with a iixed pin, B, serving as a pivot for the sh little-lever, and forming part of a universal joint by which the said feed-lever is hung, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANKLIN FOELL.

Witnesses:

HARRY DRURY, HARRY SMITH. 

